Crafted from steel, these shims are heat treated for hardness and toughness, ensuring durability and long split stone, Granites, marble, and concrete with our Heavy Duty Wedges and Shims, suitable for efficiency and labor saving in quarrying stone block Perfectly suited for use in quarries, construction, and home projects, these shims make handling various types of rock and concrete Ideal for professional stonemasons, construction workers, and enthusiasts, this tool is perfect for anyone involved in projects requiring precise stone splitting The rubber rings enhances stability during use, suitable for creating clean split in challenging materials, Manufacturer: Kaeltsyn